document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=375320>Question 375320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to come up with an algebraic equation to determine the cost of two refrigerators with good energy ratings. I found one with that will cost .1143 cents per kWh and it boasts that it uses 486 kWh per year. I want to compare it with another one I found that will cost .1143 cents per kWh. This one uses 526 kWh per year. If the purchase price of the first refrigerator is $950 and the second is $875, which one will be the better buy after 10 years? <BR>\n" );
document.write( "I'm sorry for the long question, I hope someone out there can give me an algebraic equation for putting this all together. I'd like to use it again for other appliances in the future.''.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #266867 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=266867\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First refrigerator cost + power cost for ten years<BR>\n" );
document.write( "General Equation:<BR>\n" );
document.write( "Let the number of years run be x<BR>\n" );
document.write( "(Cx1)=950+0.1143*486*x<BR>\n" );
document.write( "(Cx)=950 + 55.55x<BR>\n" );
document.write( "Second refrigerator<BR>\n" );
document.write( "(Cx2)=875+0.1143*526*x<BR>\n" );
document.write( "(Cx2)=875+60.12x<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Plug the value of x=10 for both equations to find which is a better deal.\r<BR>\n" );
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document.write( "(Cx1)= $1505.5<BR>\n" );
document.write( "(Cx2)= $ 1476.2<BR>\n" );
document.write( "..<BR>\n" );
document.write( "You decide<BR>\n" );
document.write( "..<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
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